Added MY_CS_NONASCII marker for character sets that are not compatible with latin1 for characters 0x00-0x7f

This allows us to skip and speed up some very common character converts that MySQL is doing when sending data to the client
and this gives us a nice speed increase for most queries that uses only characters in the range 0x00-0x7f.

This code is based on Alexander Barkov's code that he has done in MySQL 6.0


include/m_ctype.h:
  Added MY_CS_NONASCII marker
libmysqld/lib_sql.cc:
  Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
mysys/charset.c:
  Mark character sets with MY_CS_NONASCII
scripts/mysql_install_db.sh:
  Fixed messages to refer to MariaDB instead of MySQL
sql/protocol.cc:
  Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
sql/protocol.h:
  Added function net_store_data(...) that takes to and from CHARSET_INFO * as arguments
sql/sql_string.cc:
  Quicker copy of strings with no characters above 0x7f
strings/conf_to_src.c:
  Added printing of MY_CS_NONASCII
strings/ctype-extra.c:
  Mark incompatible character sets with MY_CS_NONASCII
  Removed duplicated character set geostd
strings/ctype-sjis.c:
  Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-uca.c:
  Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-ucs2.c:
  Mark incompatible character sets with MY_CS_NONASCII
strings/ctype-utf8.c:
  Mark incompatible character sets with MY_CS_NONASCII
strings/ctype.c:
  Added function to check if character set is compatible with latin1 in ranges 0x00-0x7f

1 files changed, 2 insertions, 0 deletions

diff --git a/include/m_ctype.h b/include/m_ctype.h
index 04cf921dfee..51ad052cd31 100644
--- a/include/m_ctype.h
+++ b/include/m_ctype.h
@@ -87,6 +87,7 @@ extern MY_UNI_CTYPE my_uni_ctype[256];
 #define MY_CS_CSSORT	1024   /* if case sensitive sort order   */	
 #define MY_CS_HIDDEN	2048   /* don't display in SHOW          */	
 #define MY_CS_PUREASCII 4096   /* if a charset is pure ascii     */
+#define MY_CS_NONASCII  8192   /* if not ASCII-compatible        */
 #define MY_CHARSET_UNDEFINED 0
 
 /* Character repertoire flags */
@@ -517,6 +518,7 @@ uint my_charset_repertoire(CHARSET_INFO *cs);
 #define my_strcasecmp(s, a, b)        ((s)->coll->strcasecmp((s), (a), (b)))
 #define my_charpos(cs, b, e, num)     (cs)->cset->charpos((cs), (const char*) (b), (const char *)(e), (num))
 
+my_bool my_charset_is_ascii_compatible(CHARSET_INFO *cs);
 
 #define use_mb(s)                     ((s)->cset->ismbchar != NULL)
 #define my_ismbchar(s, a, b)          ((s)->cset->ismbchar((s), (a), (b)))